LED Finger Pulse Oximeter • Parameter Specifications • SpO2 Range: 35%～100％ Resolution: 1% Accuracy: 2% (range 80%-100%), • Pulse Rate Range: 25bpm / min ～250bpm / min Resolution: 1bpm Accuracy: 2bpm Normal 3bpm Motion/low perfusion • Features •LED display • Screen Display 2 directions • Soft silicone padding,Strong clip • Visual low battery indication • Anti-movement, good low-perfusion performance. • Low power consumption ( less than 30mA) • Power Supply: 1.5V (AAA size) alkaline batteries × 2